Digressing for Ryan's benefit, best advise I got prior to marriage was from an older family friend. So since I'm now old, passing along his sage advice -- he said just remember to be UP! SHUT UP as your wife and her mother plan THEIR wedding, they'll ask your opinion on things but they're not really paying attention to your answer as you're just a required prop for THEIR event. SHOW UP on your wedding day, preferrably sober but showing UP for the event is most important. And afterwards, PAY UP cause you'll exceed the best planned budget.
Congrats and enjoy.